function toUnixTimestampimport { toUnixTimestamp } from "https://deno.land/x/somefn@v0.30.0/js/date.ts"; toUnixTimestamp(v?: MillisecondTimestamp | Date | string): UnixTimestamp获取 UNIX 时间戳 Parametersoptionalv: MillisecondTimestamp | Date | string = [UNSUPPORTED]毫秒时间戳, Date, 或者生成 Date 所需的字符串 ReturnsUnixTimestamp